Boytone BT-222F comes with New 4.1 Bluetooth technology which supports wireless music streaming, System comes with 2 separate speakers connected with wire to the main unit (sub-woofer). Main unit (sub-woofer) connects with wire but you can also wireless connect a Smartphone/tablet/PC via Bluetooth. FM Radio, powered by AC wall outlet (UL) listed, AUX cable included. Frequency range: Hz-20 kHz -Satellite rated power: 4"8 ohm Wired/Wireless Bluetooth connection to stream wireless music from the tablets, smart phones, iPad, iPhone and more. Volume controls on the sub-woofer, output total power is 40 watt (24+8x2) 3 Chanel amplifier Pairs quickly and easily with your unit. USB wireless remote control with FM radio and digital display. Listen to your music LOUD and CLEAR. Build in MP 3 player included, it could automatically play the music with a standalone Micro SD card. Custom Designed and Engineered by Boytone- An industry trusted brand for over 33 years. Part number: BT-222F. 1 year warranty provided by Boytone, Dimensions: 15'' (W) x 12'' (D) x 8'' (H).Black color finish.